I seem to be unable to adjust the tx power above 20dbm. I have tried: 'iwconfig wlan0 txpower 22' but this does not change the txpower.
I have also disabled the power-management.
The adapter claims that it can hit 5800mW of power which aquates to about 37dBm.
Does anyone know how I can get the txpower up? (I can put it down, just not up)
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 0424:9512 Standard Microsystems Corp.
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 004: ID 148f:3070 Ralink Technology, Corp. RT2870/RT3070 Wireless Adapter
root@raspberrypi:~# iwconfig wlan0 txpower 30
Error for wireless request "Set Tx Power" (8B26) :
SET failed on device wlan0 ; Invalid argument.